Elmo Widi Nugraha, author
2016
UI - Skripsi (Membership)
Jansen, A., author
Kolff, 1938
Buku Klasik
Kingkin Fitoriani, author
Universitas Indonesia, 2017
UI - Tesis (Membership)
Hoadley, Mason C
Institute of Southeast Asian Studies, 1994.
Buku Teks
edited by Shosuke Suzuki, Otto Soemarwoto, Tadataka Igarashi
Nissan Science Foundation, 1985
Buku Referensi